Aspirator.



I. STEINBR.

ASPIRATOR.

APPLICATION FILED JAN. 3, 1910.

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WITN-ES'SES:

1 INVENTOR WM ISWOR STEBNER,

ANDREW & GRAHAM co. mam umosmpuws. WASHINOTQM n. c

I. STEINER.

ASPIRATOR.

APPLICATION FILED JAN. 3, 1910.

Patented Mar. 8, 1910.

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mvamon BwO STEINER,

" ATTORNEY hlh rarrmvr oration,

ISIIDOR STEINEB, 01B: MUNICH, GERMANY, ASSIGNGRTO GEEELLSCHAFT FUR STEINEBS MALZ-ENTKEIMUNGS-P'UTZ UNlD-l"OLIERMAECHINEN MIT BEiiCl-ZIt-ANKTER l-IAF- TUNG, OF MUNICH, GERMl-tNY.

ASPIRATOR.

Specification of Letters Patent.

Original application filed July 20, 1909, Serial No. 508,652.

To all whom it may concern:

Be 1t known that I, lemon STEINER, subject of the German Emperor, residing at Munich, Bavaria, Germany, have lnvented a new and useful Aspirator; and I do hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to a machine for treating and cleaning grain, principally malt.

It relates particularly to one part of a compound apparatus, which consists as a whole of three devices, a separator, in which the grain is freed from the combs, a second device called the aspirator, and a third apparatus called dust collector. The first,'or separator, has been applied for by me, under date of July 20th 1909, and Serial No. 508,653, and the third, or dust collector, forms the subject matter of an application filed on the third day of January, 1910, Serial No. 536,153.

The present invention relates specifically to an apparatus called an aspirator, into which the grain previously treated in the separator, is made to pass, and in which a separation of the grains from the husks, combs, dust and the like, takes place through the medium of an air current without the use of any stationary or rotating sifting cylinders, whereby the grain is subjected at the same time to a polishing, in addition to that received in the separator, as well as to cooling and ventilation, so that it leaves the apparatus perfectly smooth and free from dust, the combs and particles of dust being carried off by the air current.

Figure 1 is a side elevation of the entire apparatus, consisting of the three parts, separator, aspirator, and dust collector. Fig. 2 is a vertical section through the aspirator, the subject'matter of the present application, and Fig. 3 is a sectional plan view of the aspirator, on the line XX, of Fig. 2.

Referring to the drawings, especially to Fig. 1, showing the apparatus for cleaning, as a whole, A is the aspirator, S, the separator, and D, the dust collector. The grain is introduced into the apparatus S, at the opening d, and reaches the aspirator A through the pipe 6, after being polished and freed from the combs. The completely cleaned grain leaves the aspirator at f, while Patented Mar. 8, 191th Ilivided and this application filed Serial No. 536,152.

the combs and particles of dust are sucked away and carried off to the dust collector D, through a pipe y], by an air current produced in an exhauster, or the like, not shown in detail, which is driven, for example, by an electric motor to be coupled up at h. The combs and dust particles are separated from the air current in the dust collector D, and fall through the pipe i below while the purified air leaves at j at the top.

The essential improvement in the present aspiratior which is formed, in a well-known manner, by a vessel provided with smooth conical rings and a drum adjustable in a vertical. direction, also carrying smooth c011- ical rings, consists in having open rings on the slowly rotating inner drum and arranging a space or shell connectedto an exhauster around the outer rings in such a way that the grain on jumping across from one ring to another, in a way depending on the regulation of the spacing, by lifting or lowering the inner .drui'n, is traversed between the conical rings by an air current passing out ward from the center so that the light combs and dust particles are carried oil thereby, while theheavy grains cleaned by the process of jumping from ring to ring, are subjected to a polishing action and fall out at the bottom.

In the method of constructing the aspirator shown in the drawings in Figs. 2 and 3, a number of open-ended funnels 1 are arranged short distances apart, around a drum consisting of funnels 2 open at the top and placed over each other in such a way that the grain supplied at 3 passes through the apparatus at the circumference of the inner drum by jumping across from ring to ring with a speed depending on the distances between the ends of the funnels. These funnels constitute frustums of hollow cones. In order to obtain a uniform dis tribution of the grain, the inner drum is allowed to be turned by the distributing vanes t. These vanes 4: are arranged about the circumference of the upper part of drum 2 and all slant in the same direction so that when the grain falls upon them they are rotated to distribute the grain supplied through the fixed guide vanes 5 about the inner circumference of the drum, thus turning the drum by utilizing the energy of the grain. For regulating the distance of the inner drum from the outer funnels, the Whole drum is supported at 6 on a lever '7, so that in turning the hand wheel .8 the drum can be raised or lowered. In this manner the zigzag path described by each particle from the inner to the outer funnel and back to the inner one within the apparatus, can be determined at will, and the cleaning process can therefore be regulated.

A shell 9 is arranged around the whole apparatus and is provided at a suitable place with an annular channel 10 which communicates with the interior of the drum, by means of a number of openings 11. It the exhauster, or the like, mentioned above, be now connected to the end of the pipe 12, the air entering through openings 13 below the tunnels 2, is sucked first through the in terior of the drum, and thence outward through the grain jumping from tunnel to funnel, whereby the combs and dust particles are carried away by the current, and are conveyed together with the latter into any vessel Whatever, but more conveniently through the pipe 9 to the third component part of the apparatus (shown in Fig. 1), viz., the dust collector.

Having thus fully described and illustrated my invention, "whatI claim, is:

'1. In an aspirator, a vessel provided with a series of stationary conical rings open at the ends a rotatable vertically adjustable inner drum provided also with open ended conical rings, and a shell encircling the outer rings, in combination with an exhaust device.

2. In an aspirator, a vessel provided with a series of stationary conical rings open at the ends, a rotatable vertically adjustable inner drum, also provided with open ended conical rings, in combination with distributing vanes arranged above the inner drum.

In an asp. ator, a vessel provided with intercommunicating series of means for supplying air between said 11111- ways and means actuated by the entering material to rotate one of said series of runways.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

ISIDOR STEINER. lVitnesses J OSEPH HUBER, LoUIs hI-UnLnnR.

runways, 

